CN214648543U - Driving steering mechanism - Google Patents
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- CN214648543U CN214648543U CN202121039616.1U CN202121039616U CN214648543U CN 214648543 U CN214648543 U CN 214648543U CN 202121039616 U CN202121039616 U CN 202121039616U CN 214648543 U CN214648543 U CN 214648543U
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Abstract
The utility model relates to a driving steering mechanism, which comprises a shell, a bottom plate, a left upper cover plate, a right upper cover plate, a left side cover plate, a right side cover plate, a driving mechanism and a steering mechanism, wherein the driving mechanism comprises a differential mechanism assembly, a left first vertical shaft, a right first vertical shaft, a first bevel gear group, a left second vertical shaft, a right second vertical shaft, a second bevel gear group and a wheel edge assembly; the steering mechanism comprises a left steering shaft, a right steering shaft and a steering oil cylinder for driving the left steering shaft and the right steering shaft to synchronously rotate, and the left steering shaft and the right steering shaft are rotatably arranged between the bottom of the left gear box and the bottom of the right gear box on two sides of the shell and the bottom plate. The utility model discloses simple structure is compact, and is small, and power transmission and the mutual noninterference that turns to can realize the wide-angle in little space and turn to, can reach 90 degrees and turn to, can also guarantee the accurate synchronization of front and back tire when the vehicle walking to preceding, the four wheel drive vehicle of back tire diameter asynchronism.
Description
Technical Field
The utility model relates to a drive steering mechanism belongs to vehicle drive and turns to technical field.
Background
The existing vehicle takes a forklift as an example: the forklift tire selection design should be: the front axle tire mainly bears the weight of, so choose the major diameter tire; the rear axle tires mainly turn, and small-diameter tires are selected, so that the required turning field is small, the turning radius is small, the turning is flexible, the friction force is small, and the steering wheel is easy to hit.
If the rear wheel is only responsible for steering and is not used for driving the two-wheel-drive vehicle, the rear wheel belongs to a driven wheel, and a small-diameter tire is selected, so that the synchronism of the front tire and the rear tire can be ensured in the driving process of the vehicle. However, when the vehicle is in a muddy road condition in rainy days, the two-wheel drive vehicle has insufficient power and cannot work normally.
In the engineering vehicles such as the four-wheel drive forklift and the like in the market, an output shaft of a gearbox is an integral shaft and belongs to rigid connection, the front end and the rear end of the shaft are respectively connected with a front drive axle and a rear drive axle, and if the diameters of front tires and rear tires are the same, the front wheels and the rear wheels can be ensured to be synchronous during walking; if the rear tire selects a small diameter, the front tire and the rear tire are asynchronous, so that great resistance is generated between the gearbox and the front drive axle and between the gearbox and the rear drive axle during walking, the axle and the gearbox are damaged, and the abrasion of the tires is aggravated.
In the steering drive axle existing in the market, the power of a gearbox of a vehicle is input through an input power shaft of the steering drive axle, then the power is transmitted upwards through the transmission of a first-stage speed change gear and a second-stage speed change gear, then the power direction is changed through a differential assembly arranged at the upper part, the power is transmitted to a left power output shaft and a right power output shaft, the power is transmitted to the hub reduction shaft head through the power output shaft downwards, although the steering angle can reach 60 degrees, but because the differential assembly of the steering drive axle is arranged at the upper part, when the differential assembly with small size is selected, the height of the whole box body can reach 600mm, and the differential with a slightly larger model is adopted, the whole steering drive axle has larger volume and higher height, for engineering vehicles, a cooling water tank is required to be arranged at the upper part of a steering drive axle, and the size of the water tank can be reduced by the overhigh steering drive axle, so that the heat dissipation effect is influenced. In addition, the existing steering drive axle has a complex power transmission structure, and is difficult to adjust the synchronization of front and rear wheels due to different diameters of front and rear tires.
SUMMERY OF THE UTILITY MODEL
The utility model discloses not enough to prior art exists, provide a simple structure is compact, and occupation space is little, and turn to and power transmission mutually noninterference, wheel turning angle can reach 90 degrees, and can guarantee the preceding of vehicle, the synchronous steering drive axle of rear wheel.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a driving steering mechanism comprises a shell, a bottom plate, a left upper cover plate, a right upper cover plate, a left side cover plate, a right side cover plate, a driving mechanism and a steering mechanism;
the differential assembly mounting structure comprises a shell, a differential assembly mounting shell, a hoisting and swinging mounting hole, a left side bevel gear box, a right side bevel gear box, sealing plates, a left gear box and a right gear box, wherein the shell is arranged above a bottom plate, the middle position of the shell is provided with the differential assembly mounting shell and the hoisting and swinging mounting hole, the hoisting and swinging mounting hole is arranged above the differential assembly mounting shell, the two sides of the differential assembly mounting shell are respectively provided with the left side bevel gear box and the right side bevel gear box, the bottoms of the left side bevel gear box and the right side bevel gear box are respectively provided with the sealing plates, the upper parts of the left side bevel gear box and the right side bevel gear box are respectively provided with the left gear box and the right gear box, and oil ducts are respectively arranged in the left gear box and the right gear box;
the steering mechanism comprises a left steering shaft, a right steering shaft, a left crank arm, a right crank arm and a steering oil cylinder for synchronous rotation of the left steering shaft and the right steering shaft, a hoisting guide shaft for guiding the steering oil cylinder is arranged in the hoisting swing mounting hole, and a left driving end and a right driving end of the steering oil cylinder are respectively hinged with the left steering shaft and the right steering shaft through the left crank arm and the right crank arm;
the driving mechanism comprises a differential assembly for inputting power, a left first vertical shaft and a right first vertical shaft which are rotatably arranged on the left side and the right side of the shell, gear sets respectively arranged in a left gear box and a right gear box, a left second vertical shaft and a right second vertical shaft which are correspondingly arranged in the left steering shaft and the right steering shaft, and wheel side assemblies respectively arranged on the outer sides of the left steering shaft and the right steering shaft, wherein the gear sets are respectively arranged in the left gear box and the right gear box, the differential assembly is arranged in the differential assembly mounting shell, a left half shaft and a right half shaft are arranged on two sides of the differential assembly, the left half shaft and the right half shaft are respectively correspondingly connected with the left first vertical shaft and the right first vertical shaft through a first bevel gear set, the left first vertical shaft and the right first vertical shaft are respectively connected with the left second vertical shaft and the right second vertical shaft through the gear sets, and a left power output shaft and a right power output shaft are respectively arranged in the wheel side assemblies, And the left and right second vertical shafts are respectively connected with the corresponding left and right power output shafts through second bevel gear groups.
The utility model has the advantages that: the driving steering mechanism can be arranged on a front driving axle or a rear driving axle of a vehicle, and the steering mechanism can freely steer left and right by 90 degrees. Compared with the existing steering driving structure, the power transmission is realized by directly transmitting the power to the power transmission parts on two sides through the differential assembly, the power of the gearbox is not required to be transmitted to the differential on the upper part and then transmitted, the height of the steering driving axle is obviously reduced, the influence on the layout of a cooling water tank of a vehicle is avoided, and the differential assembly is not arranged at the top of the shell but arranged in the middle of the shell, so that the large-size differential assembly can be selected, and the integral height of the steering driving axle is not influenced; the steering part adopts a steering shaft, and a steering oil cylinder drives the left steering shaft and the right steering shaft to steer synchronously, compared with a steering box body, the steering box body has small volume and flexible rotation, can realize large-angle steering, can realize the steering angle of 90 degrees, can realize the steering of the vehicle in a small space, and can realize the lateral movement and the walking of the vehicle if the front axle and the rear axle of a four-wheel drive vehicle both use the driving steering structure; gear sets are additionally arranged in the left and right gear boxes, and the gear sets can be arranged to set the transmission ratio of power transmission according to the diameters of tires of front and rear wheels of the vehicle, so that the synchronism of the front and rear wheels can be accurately ensured; the wheel hub can be widely applied to vehicles with different diameters of front wheels and rear wheels. In a word, the utility model discloses simple structure is compact, and is small, and power transmission and turn to mutual noninterference can realize that the wide angle turns to in little space, can reach 90 degrees even and turn to, can also guarantee the accurate synchronization of front and back tire when the vehicle walks to the four wheel drive vehicle of front and back tire diameter asynchronous.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Further, the gear set comprises two gears which are respectively an input gear and an output gear, the gears are respectively arranged in the left gear box and the right gear box through bearings, the input gear is arranged on the left first vertical shaft and the right first vertical shaft, and the output gear is arranged on the left second vertical shaft and the right second vertical shaft.
The adoption of the further scheme has the beneficial effects that the input gear is arranged at the top parts of the left and right first vertical shafts; the output gear is arranged on the top of the left and right second vertical shafts, and the input gear, the output gear and the vertical shafts are connected through splines. The gear set can set the number of teeth of the gear according to the size proportion of tires of the front axle and the rear axle, and the front axle and the rear axle are accurately synchronized through the power transmission of the gear set. In the process of power transmission, the transmission ratio of the gear set can be set according to the diameter of the tire, so that the synchronism of the front wheel and the rear wheel can be accurately ensured; the gear set can be selected from helical gear transmission or straight gear transmission, and can be a pair of or a plurality of gear transmissions, and when a pair of gear sets is formed, only one input gear and one output gear are arranged, so that the synchronism of the front wheel and the rear wheel of the vehicle can be adjusted.
Furthermore, at least one transition gear is arranged between the input gear and the output gear, and gear shafts of the transition gears are rotatably arranged in the left gear box and the right gear box.
The beneficial effect of adopting above-mentioned further scheme is that the gear train can be a pair, also can be a plurality of gear drive, and during a plurality of gear drive, can set up transition gear between input gear and output gear, and accessible adjustment gear tooth number satisfies the adjustment to the synchronism of vehicle front and rear wheel.
Furthermore, the gear set comprises two groups of bevel gear sets and bevel gear transmission shafts, the bevel gear transmission shafts are rotatably arranged in the left and right gear boxes, and two ends of each bevel gear transmission shaft are respectively connected with the two groups of bevel gear sets; one group of bevel gear sets are respectively arranged on the left and right first vertical shafts, the other group of bevel gear sets are respectively arranged on the left and right second vertical shafts, and the synchronicity of the front and rear wheels of the vehicle can be adjusted by adjusting the number of teeth of the bevel gear sets.
The gear set can adopt straight tooth transmission, also can adopt helical tooth transmission or bevel gear transmission, and realizes power transmission and adjustment of the synchronism of the front wheel and the rear wheel of the vehicle.
Furthermore, wear-resistant shafts are respectively arranged on the left side and the right side of the shell, shaft holes for rotating the left second vertical shaft and the right second vertical shaft are formed in the wear-resistant shafts, the upper parts of the left steering shaft and the right steering shaft are connected with the wear-resistant shafts through bearings and/or shaft sleeves, and the lower parts of the left steering shaft and the right steering shaft are connected with the bottom plate through bearings and/or shaft sleeves.
Adopt above-mentioned further scheme's beneficial effect is, wear-resisting axle sets up in the bottom of left and right gearbox, wear-resisting axle can set up to the dismantlement formula, if with the bolt fastening on the casing, or with casing structure as an organic whole. The left and right second vertical shafts rotate in the wear-resistant shaft, the upper parts of the left and right steering shafts are connected with the wear-resistant shaft through bearings and/or shaft sleeves, and the lower parts of the left and right steering shafts are connected with the bottom plate through bearings and/or shaft sleeves. The wear-resistant shaft can play a role in supporting the steering shaft to rotate, so that the left steering shaft and the right steering shaft can rotate between the shell and the bottom plate.
Furthermore, one end of the steering oil cylinder is connected with the left steering shaft through a left crank arm, and the other end of the steering oil cylinder is connected with the right steering shaft through a right crank arm.
The left steering shaft and the right steering shaft are provided with the lug plates, and the lug plates are provided with the hinge holes and are hinged with the left crank arm and the right crank arm through the pin shafts respectively. The lower parts of the left steering shaft and the right steering shaft are provided with oil discharge ports. A piston rod of the steering oil cylinder is hinged with a crank arm, the crank arm is hinged with an ear plate, and the steering oil cylinder is used for synchronously driving the left steering shaft and the right steering shaft to steer. The turning volume of the turning shaft is much smaller than that of a turning box on the market, and the space required by turning is reduced, so that the turning angle can reach 90 degrees.
Furthermore, the hoisting guide shaft is perpendicular to the length direction of the steering oil cylinder, a hoisting ring or a hoisting plate is arranged on the steering oil cylinder, and a guide shaft hole matched with the hoisting guide shaft is formed in the hoisting ring or the hoisting plate.
The beneficial effect of adopting above-mentioned further scheme is that, on the one hand can play the effect of hoist and mount to drive steering mechanism, realizes that drive steering mechanism's left and right small amplitude sways. On the other hand, the movable range of the steering oil cylinder can be guided and limited, the shifting in the axial direction of the cylinder body of the steering oil cylinder is avoided, the steering oil cylinder is connected with the shell through the guide shaft, the left steering shaft and the right steering shaft are driven by the steering oil cylinder to rotate by an angle as high as 90 degrees, and the lateral movement of a vehicle can be realized.
Furthermore, a positioning pin is arranged between the shell and the bottom plate.
The beneficial effect who adopts above-mentioned further scheme is, can improve the accurate location between casing and the bottom plate on the one hand, the installation of the fastening bolt of being convenient for, and on the other hand appears not hard up at the bolt, still can keep the location between bottom plate and the casing through the locating pin.
Furthermore, the edge of the bottom plate is provided with a flange for positioning the shell.
The beneficial effects of adopting above-mentioned further scheme are that, increased the support intensity of bottom plate on the one hand, on the other hand when the tire turned to, if torsion was too big between casing and the bottom plate, through bottom plate flange to the casing location, can weaken fastening bolt's shear stress, prevent that the bolt from becoming flexible or breaking, extension drive steering mechanism's life.
Furthermore, the first bevel gear set is respectively arranged in the left bevel gear box and the right bevel gear box through bearings, and the lower bearings are positioned through sealing plates with steps; the second bevel gear set is arranged in the left steering shaft and the right steering shaft through bearings respectively, and the side bearings are positioned through flanges of the wheel edge assembly.
The beneficial effect who adopts above-mentioned further scheme is that, wheel limit assembly sets up respectively in the outside of left and right steering spindle, turns to along with the axle. The bevel gear horizontally arranged is arranged in the steering shaft and is concentric with the wheel edge assembly. The installation and the positioning of the bevel gear group are realized through the bearing, and the installation and the maintenance are convenient and fast. The power transmission between the second bevel gear group and the wheel edge assembly is carried out in the left steering shaft and the right steering shaft, so that the steering of the left steering shaft and the right steering shaft is not influenced while the wheels are driven to rotate.
Furthermore, the top parts of the left and right first vertical shafts and the left and right second vertical shafts are provided with limiting blocking pieces.
The beneficial effect of adopting above-mentioned further scheme is that, spacing separation blade passes through the locking bolt and installs the upper portion at the gear, can realize stablizing spacing to the vertical scroll.
Further, the shell is connected with the bottom plate through fastening bolts.
The beneficial effect of adopting above-mentioned further scheme is, installation maintenance convenient and fast.
Furthermore, the left side and the right side of the bottom plate are respectively provided with a step sleeve for mounting a bearing or a shaft sleeve, and the bottom of the sleeve is provided with an outer mudguard and an inner mudguard.
The beneficial effect who adopts above-mentioned further scheme is, interior fender is fixed in left and right steering spindle bottom, outer fender is fixed in lower plate sleeve bottom. The steering shaft is connected with the bottom plate through the bearing, and the mudguard can be used for axially positioning the inner ring and the outer ring of the bearing, and can also be used for preventing sand from entering the bearing to protect the bearing.
Drawings
Fig. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic cross-sectional view taken along the line A-A in FIG. 1;
fig. 3 is a schematic top view of the present invention;
FIG. 4 is a schematic cross-sectional view taken along line B-B of FIG. 3;
fig. 5 is a schematic perspective view of the present invention;
fig. 6 is a schematic structural view of the gear set of the present invention;
fig. 7 is a schematic structural view of the wheel of the present invention turning to the left by 70 degrees;
FIG. 8 is a schematic structural view of the present invention showing a wheel turning to the right by 70 degrees;
fig. 9 is a schematic structural view of the wheel of the present invention turning 90 degrees to the left;
FIG. 10 is a schematic structural view of the present invention with the wheel turning to the right by 90 degrees;
in the figure, 1, a housing; 2. a base plate; 3. a differential assembly mounting housing; 4. hoisting and swinging the mounting hole; 5. a left bevel gear box; 6. a right bevel gear box; 7. a left gear box; 8. a right gearbox; 9. a left steering shaft; 10. a right steering shaft; 11. a steering cylinder; 12. a left crank arm; 13. a right crank arm; 14. a differential assembly; 15. a left half shaft; 16. a right half shaft; 17. a left first vertical shaft; 18. a right first vertical shaft; 19. a left second vertical shaft; 20. A right second vertical shaft; 21. a left power take-off shaft; 22. a right power take-off shaft; 23. a first bevel gear set; 24. a gear set; 25. a second bevel gear set; 26. a wheel edge assembly; 27. a wear resistant shaft; 28. an input gear; 29. An output gear; 30. a bearing; 31. a shaft sleeve; 32. hoisting the guide shaft; 33. positioning pins; 34. fastening a bolt; 35. an outer fender; 36. an inner fender; 37. an upper cover plate; 38. a side cover plate; 39. a limiting baffle plate; 40. and (7) sealing the plate.
Detailed Description
The principles and features of the present invention are described below in conjunction with examples, which are set forth only to illustrate the present invention and are not intended to limit the scope of the present invention.
Embodiment 1, as shown in fig. 1 to 10, a drive steering mechanism includes a housing 1, a bottom plate 2, left and right upper cover plates 37, left and right side cover plates 38, a drive mechanism, and a steering mechanism;
the casing 1 is arranged above the bottom plate 2, a differential assembly mounting shell 3 and a hoisting swing mounting hole 4 are arranged in the middle of the casing 1, the hoisting swing mounting hole 4 is arranged above the differential assembly mounting shell 3, a left bevel gear box 5 and a right bevel gear box 6 are respectively arranged on two sides of the differential assembly mounting shell 3, a left gear box 7 and a right gear box 8 are respectively arranged above the left bevel gear box and the right bevel gear box, and oil ducts are respectively arranged in the left gear box and the right gear box;
the steering mechanism comprises a left steering shaft 9, a right steering shaft 10, a left crank arm 12, a right crank arm 13 and a steering oil cylinder 11 for synchronous rotation of the left steering shaft and the right steering shaft, a hoisting guide shaft 32 for guiding the steering oil cylinder is arranged in the hoisting swing mounting hole 4, and the left driving end and the right driving end of the steering oil cylinder are respectively hinged with the left steering shaft and the right steering shaft correspondingly;
the driving mechanism comprises a differential assembly 14 for inputting power, a left first vertical shaft 17 and a right first vertical shaft 18 which are rotatably arranged on the left side and the right side of the shell, gear sets 24 arranged in a left gear box and a right gear box, a left second vertical shaft 19 and a right second vertical shaft 20 which are correspondingly arranged in the left steering shaft and the right steering shaft, and a wheel edge assembly 26 arranged on the outer side of the left steering shaft and the right steering shaft, wherein the gear sets are respectively arranged in the left gear box and the right gear box, the differential assembly is arranged in a differential assembly mounting shell, a left half shaft 15 and a right half shaft 16 are arranged on two sides of the differential assembly, the left half shaft and the right half shaft are respectively and correspondingly connected with the left first vertical shaft and the right vertical shaft through a first bevel gear group 23, the left first vertical shaft and the right vertical shaft are respectively connected with the left vertical shaft and the right second vertical shaft through the gear sets, a left power output shaft 21 and a right power output shaft are respectively arranged in the wheel edge assembly, And the left and right second vertical shafts are connected with the corresponding left and right power output shafts through second bevel gear groups 25 respectively.
The gear set 24 includes two gears, an input gear 28 and an output gear 29, the gears are respectively disposed in the left and right gear boxes through bearings, the input gear is disposed on the left and right first vertical shafts, and the output gear is disposed on the left and right second vertical shafts. The input gear is correspondingly arranged on the top of the left and right first vertical shafts, the output gear is correspondingly arranged on the top of the left and right second vertical shafts, and the gear is connected with the vertical shafts through splines. In the process of power transmission, the transmission ratio of the gear set can be set according to the diameter of the tire, so that the synchronism of the front wheel and the rear wheel can be accurately ensured; the gear set can be selected from helical gear transmission or straight gear transmission, and can be a pair of or a plurality of gear transmissions, and when a pair of gear sets is formed, only one input gear and one output gear are arranged, so that the synchronism of the front wheel and the rear wheel of the vehicle can be adjusted.
Wear-resistant shafts 27 are respectively arranged on the left side and the right side of the shell 1, shaft holes for rotating the left second vertical shaft and the right second vertical shaft are formed in the wear-resistant shafts, the upper portions of the left steering shaft and the right steering shaft are connected with the wear-resistant shafts through bearings 30 and/or shaft sleeves 31, and the lower portions of the left steering shaft and the right steering shaft are connected with the bottom plate through bearings 30 and/or shaft sleeves 31. The wear-resistant shaft is arranged at the bottom of the left gear box and the right gear box, and the wear-resistant shaft can be arranged in a detachable mode, such as fixed on the shell through bolts, or integrated with the shell. The left and right second vertical shafts rotate in the wear-resistant shaft, the lower part of the wear-resistant shaft is connected with the upper parts of the left and right steering shafts through bearings and/or shaft sleeves, and the lower parts of the left and right steering shafts are respectively connected with the bottom plate through bearings and/or shaft sleeves. The wear-resistant shaft plays a role in supporting the steering shaft to rotate, so that the left steering shaft and the right steering shaft can rotate between the shell and the bottom plate.
One end of the steering oil cylinder 11 is connected with the left steering shaft through a left crank arm 12, and the other end of the steering oil cylinder is connected with the right steering shaft through a right crank arm 13. The left steering shaft and the right steering shaft are provided with lug plates, and the lug plates are provided with hinge holes which are respectively hinged with the left crank arm and the right crank arm through pin shafts. The lower parts of the left steering shaft and the right steering shaft are provided with oil discharge ports. A piston rod of the steering oil cylinder is hinged with a crank arm, the crank arm is hinged with an ear plate, and the steering oil cylinder is used for synchronously driving the left steering shaft and the right steering shaft to steer. The turning volume of the turning shaft is much smaller than that of a turning box on the market, and the space required by turning is reduced, so that the turning angle can reach 90 degrees.
The hoisting guide shaft 32 is perpendicular to the length direction of the steering oil cylinder, the steering oil cylinder is provided with a hoisting ring or a hoisting plate, and the hoisting ring or the hoisting plate is provided with a guide shaft hole matched with the hoisting guide shaft. On one hand, the lifting device can play a role in lifting the driving steering mechanism, and realizes the left-right small-amplitude swinging of the driving steering mechanism. On the other hand, the guide limiting can be carried out on the moving range of the steering oil cylinder, and the shifting in the axial direction of the cylinder body of the steering oil cylinder is avoided. The steering oil cylinder is connected with the shell through the hoisting guide shaft, the left steering shaft and the right steering shaft are driven by the steering oil cylinder to rotate by an angle as high as 90 degrees, and if the front axle and the rear axle of the four-wheel drive vehicle both use the driving steering structure, the vehicle can laterally move and walk.
A positioning pin 33 is arranged between the shell and the bottom plate. On the one hand, the accurate positioning between the shell and the bottom plate can be improved, the installation of the fastening bolt is convenient, and on the other hand, when the bolt is loosened, the positioning between the bottom plate and the shell can still be kept through the positioning pin.
The edge of the bottom plate 2 is provided with a flange for positioning the shell 1. On one hand, the supporting strength of the bottom plate is increased, on the other hand, if the torsion between the shell and the bottom plate is too large when the tire turns, the shell is positioned through the flange of the bottom plate, the shearing stress of the fastening bolt 34 can be weakened, the bolt is prevented from loosening or breaking, and the service life of the driving steering mechanism is prolonged.
The first bevel gear group 23 is respectively arranged in the left bevel gear box and the right bevel gear box through bearings, and the lower bearings are positioned through a sealing plate 40 with steps; the second bevel gear set 25 is respectively arranged in the left steering shaft and the right steering shaft through bearings, and the side bearings are positioned through flanges of the wheel edge assembly 26. The wheel edge assemblies are respectively arranged on the outer sides of the left steering shaft and the right steering shaft and steer along with the shafts. The bevel gear horizontally arranged is arranged in the steering shaft and is concentric with the wheel edge assembly. The installation and the positioning of the bevel gear group are realized through the bearing, and the installation and the maintenance are convenient and fast. The power transmission between the second bevel gear group 25 and the wheel edge assembly is carried out in the left steering shaft and the right steering shaft, so that the steering of the left steering shaft and the right steering shaft is not influenced while the wheels are driven to rotate.
And limiting blocking pieces 39 are arranged at the tops of the left and right first vertical shafts and the left and right second vertical shafts. The limiting blocking piece is installed on the upper portion of the gear through the locking bolt, and the vertical shaft can be stably limited.
The housing and the bottom plate are connected by fastening bolts 34. The installation and maintenance are convenient and fast.
The left side and the right side of the bottom plate are respectively provided with a step sleeve for mounting a bearing or a shaft sleeve, and the bottom of the sleeve is provided with an outer mudguard 35 and an inner mudguard 36. The inner mudguard is fixed at the bottoms of the left steering shaft and the right steering shaft, and the outer mudguard is fixed at the bottom of the lower bottom plate sleeve. The steering shaft is connected with the bottom plate through the bearing, and the mudguard can be used for axially positioning the inner ring and the outer ring of the bearing, and can also be used for preventing sand from entering the bearing to protect the bearing.
In embodiment 2, at least one transition gear is further disposed between the input gear and the output gear, and gear shafts of the transition gear are rotatably disposed in the left and right gear boxes, respectively. The gear set can be a pair, or can be a plurality of gear transmissions, when the plurality of gear transmissions are carried out, a transition gear can be arranged between the input gear and the output gear, and the synchronism of the front wheel and the rear wheel of the vehicle can be adjusted by adjusting the number of teeth of the plurality of gears. The rest of the structure is the same as that of embodiment 1, and will not be described in more detail.
The driving steering mechanism has the advantages that the power output and the steering are independent and separated, and the power transmission is not influenced under the condition that the tire is steered. The front axle and/or the rear axle can be used for engineering vehicles, when the front axle and the rear axle of the vehicle can simultaneously use the steering drive axle, the front axle is set to be a fixed structure, the rear axle is set to be a swing structure, and when the front wheel and the rear wheel of the vehicle steer to 90 degrees, the vehicle can also generate the effect of lateral movement. The steering driving axle can ensure the synchronization of the front wheel and the rear wheel when the diameters of the front wheel and the rear wheel of the four-wheel drive are different. In the process of power transmission, the synchronism of the front wheel and the rear wheel can be accurately ensured according to the diameter of the tire and the setting of the transmission ratio of the gear set. The gear set can be selected from helical gear transmission, straight gear transmission or bevel gear set transmission, can be one pair or multiple gear transmission, and can be used for adjusting the synchronism of front and rear tires only by adjusting the gear ratio of the gear set. If the diameters of the front and rear wheels of the vehicle are the same when a pair of gears are used for transmission, the front and rear wheels can be synchronized by the same number of teeth of the input gear 28 and the output gear 29; if the bearing diameter of the front wheels is 880mm, and the flexible steering diameter of the rear wheels is 770mm, the gear ratio of the input gear 28 and the output gear 29 can be adjusted to be 24:21 or 32:28, etc., a driving shaft of a gearbox of the vehicle is connected with a front driving axle forward to drive the front wheels to act, and is connected with a rear driving axle backward to drive the rear wheels to rotate, the rear driving axle adopts the driving steering mechanism, and the front wheels and the rear wheels are accurately synchronized by adjusting the synchronism of the front wheels and the rear wheels through the driving steering axle. A steering oil cylinder of a bidirectional oil cylinder, a hoisting guide shaft for driving a steering mechanism to swing and guiding the steering oil cylinder to reciprocate, a left steering shaft and a right steering shaft arranged between a bottom plate and a shell, and a crank arm between the bidirectional oil cylinder and the steering shaft are connected through a pin shaft to form a connecting rod mechanism, and synchronous steering of wheel side assemblies on two sides of the mechanism is realized through reciprocating motion of the oil cylinder and stretching of a piston rod of the oil cylinder.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. A driving steering mechanism is characterized by comprising a shell (1), a bottom plate (2), a left upper cover plate (37), a right upper cover plate (37), a left side cover plate (38), a right side cover plate (38), a driving mechanism and a steering mechanism;
the casing is arranged above the bottom plate, a differential assembly mounting shell (3) and a hoisting swing mounting hole (4) are arranged in the middle of the casing, the hoisting swing mounting hole is arranged above the differential assembly mounting shell, a left bevel gear box (5) and a right bevel gear box (6) are respectively arranged on two sides of the differential assembly mounting shell, a left gear box (7) and a right gear box (8) are respectively arranged above the left bevel gear box and the right bevel gear box, and oil ducts are respectively arranged in the left gear box and the right gear box;
the steering mechanism comprises a left steering shaft (9), a right steering shaft (10), a left crank arm (12), a right crank arm (13) and a steering oil cylinder (11) for synchronously rotating the left steering shaft and the right steering shaft, a hoisting guide shaft (32) for guiding the steering oil cylinder (11) is arranged in the hoisting swing mounting hole, and the left and right driving ends of the steering oil cylinder are respectively hinged with the left and right steering shafts correspondingly through the left crank arm and the right crank arm;
the driving mechanism comprises a differential assembly (14) for inputting power, a left first vertical shaft (17) and a right first vertical shaft (18) which are rotatably arranged on the left side and the right side of the shell, gear sets (24) respectively arranged in a left gear box and a right gear box, a left second vertical shaft (19) and a right second vertical shaft (20) which are correspondingly arranged in the left steering shaft and the right steering shaft, and a wheel edge assembly (26) arranged on the outer sides of the left steering shaft and the right steering shaft, wherein the left gear set and the right gear set are respectively arranged in the left gear box and the right gear box, the differential assembly is arranged in the differential assembly mounting shell, a left half shaft (15) and a right half shaft (16) are arranged on the two sides of the differential assembly, the left half shaft and the right half shaft are respectively correspondingly connected with the left vertical shaft and the right vertical shaft through a left first bevel gear set (23) and a right first bevel gear set, and the left vertical shaft and the right vertical shaft are respectively connected with the left vertical shaft and the left shaft through the gear set, The right second vertical shaft is connected, a left power output shaft (21) and a right power output shaft (22) are respectively arranged in the wheel side assembly, and the left and right second vertical shafts are respectively connected with the corresponding left and right power output shafts through second bevel gear groups (25).
2. The drive steering mechanism of claim 1, wherein the gear train includes two gears, an input gear and an output gear, the gears being disposed within the left and right gear boxes via bearings, the input gear being disposed on the left and right first vertical shafts, the output gear being disposed on the left and right second vertical shafts.
3. The drive steering mechanism according to claim 2, wherein at least one transition gear is further provided between the input gear and the output gear, and gear shafts of the transition gears are rotatably provided on the left and right gear boxes.
4. The drive steering mechanism according to claim 1, wherein the gear set comprises two sets of bevel gear sets and bevel gear transmission shafts, the bevel gear transmission shafts are rotatably mounted in the left and right gear boxes, and two ends of each bevel gear transmission shaft are respectively connected with the two sets of bevel gear sets; the group of bevel gear sets is respectively arranged on the left and right first vertical shafts, and the other group of bevel gear sets is respectively arranged on the left and right second vertical shafts.
5. The drive steering mechanism according to any one of claims 1 to 4, wherein wear-resistant shafts (27) are respectively arranged on the left side and the right side of the housing, shaft holes for rotating the left and the right second vertical shafts are formed in the wear-resistant shafts, the upper parts of the left and the right steering shafts are connected with the wear-resistant shafts through bearings and/or shaft sleeves, and the lower parts of the left and the right steering shafts are connected with the bottom plate through bearings and/or shaft sleeves.
6. The drive steering mechanism according to any one of claims 1 to 4, wherein the hoisting guide shaft (32) is perpendicular to the length direction of the steering cylinder (11), the steering cylinder is provided with a hoisting ring or a hoisting plate, and the hoisting ring or the hoisting plate is provided with a guide shaft hole matched with the hoisting guide shaft.
7. The drive steering mechanism according to any one of claims 1 to 4, characterized in that a positioning pin (33) is provided between the housing and the bottom plate.
8. The drive steering mechanism as recited in claim 7 wherein a rim is provided at an edge of the bottom plate for positioning the housing.
9. The drive steering mechanism according to any one of claims 1 to 4, wherein step sleeves for mounting bearings or bushings are respectively arranged on the left side and the right side of the bottom plate, and an outer fender and an inner fender are arranged at the bottoms of the step sleeves.
10. The drive steering mechanism according to any one of claims 1 to 4, wherein the first bevel gear set (23) is arranged in the left and right bevel gear boxes (5, 6) by means of bearings, respectively; the second bevel gear group (25) is arranged in the left steering shaft (9) and the right steering shaft (10) through bearings respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121039616.1U CN214648543U (en) | 2021-05-14 | 2021-05-14 | Driving steering mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121039616.1U CN214648543U (en) | 2021-05-14 | 2021-05-14 | Driving steering mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214648543U true CN214648543U (en) | 2021-11-09 |
Family
ID=78495325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121039616.1U Active CN214648543U (en) | 2021-05-14 | 2021-05-14 | Driving steering mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214648543U (en) |
-
2021
- 2021-05-14 CN CN202121039616.1U patent/CN214648543U/en active Active
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